NDLI: Ultrasound monitoring of inter-knee distances during gait

Content Provider	IEEE Xplore Digital Library
Author	Lai, D.T.H. Wrigley, T.V. Palaniswami, M.
Copyright Year	2009
Description	Author affiliation: Department of Electrical and Electronics Engineering, The University of Melbourne, Australia (Palaniswami, M.) \|\| Centre for Health, Exercise and Sports Medicine (CHESM), The University of Melbourne, Australia (Wrigley, T.V.) \|\| Centre of Aging, Rehabilitation, Exercise and Sport, Victoria University, Australia (Lai, D.T.H.)
Abstract	Knee osteoarthritis is an extremely common, debilitating disease associated with pain and loss of function. There is considerable interest in monitoring lower limb alignment due to its close association with joint overload leading to disease progression. The effects of gait modifications that can lower joint loading are of particular interest. Here we describe an ultrasound-based system for monitoring an important aspect of dynamic lower limb alignment, the inter-knee distance during walking. Monitoring this gait parameter should facilitate studies in reducing knee loading, a primary risk factor of knee osteoarthritis progression. The portable device is composed of an ultrasound sensor connected to an Intel iMote2 equipped with Bluetooth wireless capability. Static tests and calibration results show that the sensor possesses an effective beam envelope of 120 degrees, with maximum distance errors of 10% at the envelope edges. Dynamic walking trials reveal close correlation of inter-knee distance trends between that measured by an optical system (Optotrak Certus NDI) and the sensor device. The maximum average root mean square error was found to be 1.46cm. Future work will focus on improving the accuracy of the device.
Starting Page	725
Ending Page	728
File Size	1745103
Page Count	4
File Format	PDF
ISBN	9781424432967
ISSN	1557170X
DOI	10.1109/IEMBS.2009.5332907
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ultrasonic imaging Knee Osteoarthritis Bone diseases Legged locomotion Optical sensors Pain Condition monitoring Bluetooth Wireless sensor networks
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A wireless gait analysis system by digital textile sensors

Automatic detection, extraction and analysis of unrestrained gait using a wearable sensor system

A preliminary study on evaluation of circumduction movement during gait with wireless inertial sensors

PAGAS: Portable and accurate gait analysis system

Wearable shoe-based device for rehabilitation of stroke patients

Using wearable UWB radios to measure foot clearance during walking

On the interlimb coordination and synchronization during gait

Wireless gyroscope suit for gait stability estimation

Compliant gait assistance triggered by user intention

Ultrasound monitoring of inter-knee distances during gait

Similar Documents

A wireless gait analysis system by digital textile sensors

Automatic detection, extraction and analysis of unrestrained gait using a wearable sensor system

A preliminary study on evaluation of circumduction movement during gait with wireless inertial sensors

PAGAS: Portable and accurate gait analysis system

Wearable shoe-based device for rehabilitation of stroke patients

Using wearable UWB radios to measure foot clearance during walking

On the interlimb coordination and synchronization during gait

Wireless gyroscope suit for gait stability estimation

Compliant gait assistance triggered by user intention

Ultrasound monitoring of inter-knee distances during gait